Home / 155,368,390.95-214,393,114.68-85,749,287.85

Finding the Fourth Proportional to 155,368,390.95, 214,393,114.68 and 85,749,287.85

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Solution

The fourth proportional to 155,368,390.95, 214,393,114.68 and 85,749,287.85 is: 118,325,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,368,390.95 : 214,393,114.68 = 85,749,287.85 : x
  2. Step 2: Convert to fraction form
    155,368,390.95/214,393,114.68 = 85,749,287.85/x
  3. Step 3: Cross multiply
    155,368,390.95x = 214,393,114.68 × 85,749,287.85
  4. Step 4: Simplify right side
    155,368,390.95x = 18,384,056,903,431,820
  5. Step 5: Solve for x
    x = 18,384,056,903,431,820/155,368,390.95
  6. Step 6: Final answer
    x = 118,325,592.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.